How far is Green Bay, WI from City of Janesville, WI?
The driving distance from Green Bay, WI to City of Janesville, WI is about 155.7 miles (250.6 km), with a travel time of about 02h 48m by car.
- The straight-line flight distance is about 136.1 miles (219 km).
- For a round trip, plan for roughly 05h 37m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM CDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 02h 48m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in Dodge and Fond du Lac counties, Wisconsin, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Green Bay and City of Janesville.
Turn-by-Turn Driving Directions
Step-by-step road directions between Green Bay and City of Janesville.
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1
Start on Dousman Street
78 m · 14 sec · Dousman Street
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2
Continue on Dousman Street
105 m · 25 sec · Dousman Street
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3
Turn left onto North Broadway
1167 ft · 36 sec · North Broadway
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4
Turn right onto West Walnut Street
1047 ft · 25 sec · West Walnut Street
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5
Turn left onto South Ashland Avenue
4.9 mi · 9 min · South Ashland Avenue
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6
Enter the roundabout and take exit 2 toward South Ashland Avenue
35 m · 2 sec · South Ashland Avenue
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7
Exit the roundabout onto South Ashland Avenue
674 ft · 13 sec · South Ashland Avenue
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8
Take the ramp straight toward I 41 South: Appleton
1.6 km · 2 min
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9
Merge slight left
49 mi · 53 min
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10
Take the exit slight right toward WI 26, CTH N: Rosendale
2112 ft · 52 sec
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11
Turn right onto State Highway 26
10.7 mi · 15 min · State Highway 26
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12
Continue on North Main Street
1 mi · 3 min · North Main Street
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13
Continue on State Highway 26
9.7 mi · 13 min · State Highway 26
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14
Take the ramp slight right
2383 ft · 58 sec
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15
Merge slight left
4.1 mi · 5 min
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16
Take the exit slight right toward WI 26: Waupun, Juneau
1257 ft · 31 sec
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17
Keep slight left
57 m · 5 sec
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18
Turn left onto State Highway 26
6.9 mi · 9 min · State Highway 26
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19
Continue on Front Street
2888 ft · 1 min · Front Street
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20
Continue on State Highway 26
5.6 mi · 8 min · State Highway 26
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21
Continue on North Main Street
1.5 km · 2 min · North Main Street
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22
Turn right onto West North Street
2962 ft · 1 min · West North Street
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23
Turn left onto Western Avenue
1806 ft · 51 sec · Western Avenue
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24
Turn right onto State Highway 26
22.8 mi · 28 min · State Highway 26
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25
Continue straight
34.8 mi · 46 min
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26
Turn left onto East Memorial Drive
80 m · 12 sec · East Memorial Drive
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27
Continue on North Garfield Avenue
2552 ft · 2 min · North Garfield Avenue
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28
Turn right onto East Court Street
142 m · 16 sec · East Court Street
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29
Arrive at your destination
0 m · 1 sec · East Court Street
Car Route Details
A richer read on the saved driving route between Green Bay and City of Janesville.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 41 South
Merge slight left
49 mi · 00h 53m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Sunny leaving Green Bay and Mostly Sunny near City of Janesville.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Green Bay to City of Janesville?
The road trip is about 155.7 miles (250.6 km) and usually takes 02h 48m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Waupun is a useful midpoint, sitting about 77.7 miles from Green Bay and 78 miles from City of Janesville.
How much longer is the road route than the straight-line distance?
The direct path is about 136.1 miles (219 km), while the road route adds roughly 19.6 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 8:00 AM to 10:00 AM CDT. If you want a more comfortable same-day return, try to leave by 12:52 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $20.70 one way or $41.41 round trip. Estimated CO2 is about 48.8 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Green Bay and Mostly Sunny near City of Janesville.
Stop Ideas Near Waupun
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Waupun.
Waupun, WI
Beaver Dam, WI
Fond du Lac, Wisconsin
Columbus
Flight Path Map
This map shows the direct air route between Green Bay and City of Janesville. Straight-line distance: 136.09 mi (219.02 km).
#1 Green Bay
City in and county seat of Brown County, Wisconsin
| Population | 2,189 |
| Coordinates | 44.5191600, -88.0198300 |
| Altitude | 180 |
| Country | United States |
#2 City of Janesville
The most populous city in Rock County, Wisconsin.
| Population | 64,128 |
| Coordinates | 42.6857000, -89.0138500 |
| Altitude | 261 |
| Country | United States |
End: East Court Street (-89.013903, 42.685777)
Estimated Travel Time
Distance: 251 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 11m |
| 40 mph (64.37 km/h) | 03h 53m |
| 50 mph (80.47 km/h) | 03h 06m |
| 60 mph (96.56 km/h) | 02h 35m |
| 70 mph (112.65 km/h) | 02h 13m |
| 80 mph (129 km/h) | 01h 56m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $20.70 | $41.41 |
| Mid-grade | $4.25 | $23.35 | $46.70 |
| Premium | $4.65 | $25.55 | $51.10 |
| Diesel | $5.30 | $29.12 | $58.24 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Wisconsin · May 31, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.